When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to as a "post-term pregnancy."
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10

Specifics:
You did not define what symptoms you are referring to. We cannot just assume what you mean by such an ambiguous word choice. But, tugging and cramping are signs of infection not signs of pregnancy early on.
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19

Pregnancy:
Mucus plug passing is heralded by passage of large amount of thick snot like mucous. That can happen hours to weeks before delivery. Not usually associated with cramps and pain. Sounds more like you may have a UTI or labor pains. Best to check with your OB.
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